After One year of idleness, I recently began optimizing my Extruder.
Becaus this is going to be my Bachelor thesis, the upcoming information will be quite extensive, so stay tuned!
I am making simulations and calculations of heat dispersion, flow, pressure for further improvements. I will also make a Melt Flow Index Analysis to determin how the polymer is degradating.
I hope to collect enough process data for other people who are making their own filament to be helpful, since extrusion is actually no simple process.
My remix of the Filament Extruder from Bender24601. Its not yet completly functional but I expect to finish it this weekend.
It works with a Nema 34 Stepper Motor (And a 20:1 Gearbox after this weekend) from Portescap and two heating bands with 240 Watts each. Instead of an auger I use an extrusion screw with 400 x 20 mm.
For the futur I intend to upload more fotos and of course the construction plans including bill of materials.